package top.leoseven.adminproject.modle;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by Administrator on 2018/3/8.
 */

public class Contents {
    private static Contents instance;
    private List<KeCheng> kechengs;
    private List<HomeWork> homeWorks;
    private Contents(){
        kechengs=new ArrayList<>();
        homeWorks=new ArrayList<>();
    }
    private void addHomeworks(List<HomeWork> works){

    }
    public static Contents getInstance(){
        if (instance==null) {
            instance=new Contents();
        }
        return instance;
    }
}
